1 Matsalolin da aka saba fuskanta a cikin foda mai kauri a bango:
(1) Yana bushewa da sauri.
Wannan ya faru ne musamman saboda yawan sinadarin calcium da aka ƙara a toka (ya yi yawa sosai, adadin sinadarin calcium foda da aka yi amfani da shi a cikin dabarar putty za a iya rage shi yadda ya kamata) yana da alaƙa da yawan riƙe ruwa na zare, kuma yana da alaƙa da bushewar bango.
(2) Bare kuma a mirgina.
Wannan yana da alaƙa da yawan riƙe ruwa, wanda yake da sauƙin faruwa lokacin da ɗanɗanon cellulose ya yi ƙasa ko kuma adadin ƙarin ya yi ƙasa.
(3) Cire foda na cikin gida na putty.
Wannan yana da alaƙa da adadin foda na ash da aka ƙara (adadin foda na ash a cikin dabarar putty ya yi ƙanƙanta ko kuma tsarkin foda na ash ya yi ƙasa sosai, kuma ya kamata a ƙara adadin foda na ash a cikin dabarar foda na putty yadda ya kamata), kuma yana da alaƙa da ƙara cellulose. Akwai alaƙa tsakanin adadi da inganci, wanda ke nuna a cikin ƙimar riƙe ruwa na samfurin. Yawan riƙe ruwa yana da ƙasa, kuma foda na ash (ƙaramin calcium oxide a cikin foda na ash ba a canza shi gaba ɗaya zuwa calcium hydroxide don ruwa ba) lokaci bai isa ba, wanda ke haifar da shi.
(4) Kumburin fuska.
Wannan yana da alaƙa da bushewar danshi da kuma faɗin bangon, kuma yana da alaƙa da ginin.
(5) Ma'anoni sun bayyana.
Wannan yana da alaƙa da cellulose, wanda ke da mummunan tasirin samar da fim. A lokaci guda, ƙazanta a cikin cellulose yana amsawa kaɗan da sinadarin ash calcium. Idan amsawar ta yi tsanani, foda putty zai bayyana a cikin yanayin ragowar wake curd. Ba za a iya sanya shi a bango ba, kuma ba shi da ƙarfin haɗin kai a lokaci guda. Bugu da ƙari, wannan yanayin yana faruwa tare da samfuran kamar ƙungiyoyin carboxyl da aka ƙara a cikin cellulose.
(6) Raƙuman dutse da ramukan filaye sun bayyana.
Wannan a bayyane yake yana da alaƙa da tashin hankalin saman ruwa na ruwan hydroxypropyl methylcellulose. Tashin hankalin teburin ruwa na ruwan hydroxyethyl ba a bayyane yake ba. Zai yi kyau a yi maganin ƙarshe.
(7) Bayan putty ya bushe, yana da sauƙin fashewa ya koma rawaya.
Wannan yana da alaƙa da ƙara yawan garin ash-calcium. Idan aka ƙara yawan garin ash-calcium da yawa, taurin garin putty zai ƙaru bayan ya bushe. Idan garin putty ba shi da sassauci, zai fashe cikin sauƙi, musamman lokacin da aka fuskanci ƙarfin waje. Hakanan yana da alaƙa da yawan sinadarin calcium oxide a cikin garin ash calcium, wanda aka gabatar a baya.
2 Me yasa foda na putty yake siriri bayan an ƙara ruwa?
Ana amfani da cellulose a matsayin mai kauri da kuma mai riƙe ruwa a cikin putty. Saboda thixotropy na cellulose kanta, ƙara cellulose a cikin putty foda shi ma yana haifar da thixotropy bayan ƙara ruwa a cikin putty. Wannan thixotropy yana faruwa ne ta hanyar lalata tsarin haɗin da aka haɗa na abubuwan da ke cikin putty foda. Wannan tsari yana tasowa a lokacin hutawa kuma yana rushewa a ƙarƙashin damuwa. Wato, viscosity yana raguwa yayin motsawa, kuma viscosity yana dawowa lokacin tsayawa cak.
3 Me yasa putty ɗin yake da nauyi sosai a tsarin gogewa?
A wannan yanayin, dankowar cellulose da ake amfani da ita gabaɗaya ya yi yawa. Wasu masana'antun suna amfani da cellulose 200,000 don yin putty. Putty da aka samar ta wannan hanyar yana da danko mai yawa, don haka yana jin nauyi lokacin gogewa. Adadin putty da aka ba da shawarar don bangon ciki shine kilogiram 3-5, kuma danko shine 80,000-100,000.
4 Me yasa putty da turmi da aka yi da cellulose mai kama da juna suke jin bambanci a lokacin hunturu da bazara?
Saboda yanayin zafi na samfurin, ɗanɗanon samfurin zai ragu a hankali tare da ƙaruwar zafin jiki. Lokacin da zafin ya wuce zafin gel na samfurin, samfurin zai fito daga ruwa kuma ya rasa ɗanɗanon sa. Zafin ɗakin a lokacin rani gabaɗaya yana sama da digiri 30, wanda ya bambanta da zafin hunturu, don haka ɗanɗanon yana ƙasa. Ana ba da shawarar zaɓar samfurin da ke da ɗanɗanon da ya fi yawa lokacin amfani da samfurin a lokacin rani, ko don ƙara yawan cellulose, da kuma zaɓar samfurin da ke da zafin gel mafi girma. Yi ƙoƙarin kada a yi amfani da methyl cellulose a lokacin rani, zafin gel ɗinsa yana kusa da digiri 55, idan zafin ya ɗan fi girma, ɗanɗanon sa zai yi tasiri sosai.
Lokacin Saƙo: Nuwamba-26-2022